Where does “άρμη” come from?

άρμη (Byzantine Greek) comes from Ancient Greek ἅλμη, from Ancient Greek ἅλς, from Ancient Greek -ῐος, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

Ancestry of “άρμη”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ἅλμη	seawater, brine; spray that has dried on the...
2	Ancient Greek	ἅλς	salt; brine; sea
3	Ancient Greek	-ῐος	belonging to; of”, “belonging to”, “pertaining to
4	Proto-Indo-European	-yós	Creates adjectives from noun or verb stems

Every word from Proto-Indo-European -yós →Every word from Ancient Greek -ῐος →Every word from Ancient Greek ἅλς →